GB836546A - Propellent powders - Google Patents

Propellent powders

Info

Publication number
GB836546A
GB836546A GB35043/58A GB3504358A GB836546A GB 836546 A GB836546 A GB 836546A GB 35043/58 A GB35043/58 A GB 35043/58A GB 3504358 A GB3504358 A GB 3504358A GB 836546 A GB836546 A GB 836546A
Authority
GB
United Kingdom
Prior art keywords
solvent
grains
medium
solute
methyl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB35043/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olin Corp
Original Assignee
Olin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olin Corp filed Critical Olin Corp
Publication of GB836546A publication Critical patent/GB836546A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0083—Treatment of solid structures, e.g. for coating or impregnating with a modifier

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Manufacturing Of Micro-Capsules (AREA)

Abstract

836,546. Propellant powders. OLIN MATHIESON CHEMICAL CORPORATION. Oct. 31, 1958 [Nov. 6, 1957], No. 35043/58. Class 9(2) Propellant powder grains having a porous interior and a dense outer layer are made by suspending propellant powder grains in a non-solvent medium, softening the grains by adding to the suspension a solvent for the grains that is only partially miscible with the non- solvent medium, removing a portion of the solvent from the grains (as by raising the temperature of the suspension), adding to the non-solvent medium a solute for it, the solute being substantially insoluble in the solvent, and removing the remainder of the solvent from the grains while the latter are still suspended in the non- 'solvent medium. Water is the preferred non-solvent, but glycerine, benzene and chlorinated hydrocarbons may also be used. Solvents include ethyl acetate, methyl acetate, isobutyl acetate, methyl isobutyl ketone and methyl ethyl ketone. Sodium sulphate, barium nitrate, potassium nitrate, ammonium sulphate and sugar are specified as solutes. A protective colloid such as animal glue or starch may be added to the non-solvent suspending medium.
GB35043/58A 1957-11-06 1958-10-31 Propellent powders Expired GB836546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US836546XA 1957-11-06 1957-11-06

Publications (1)

Publication Number Publication Date
GB836546A true GB836546A (en) 1960-06-01

Family

ID=22179813

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35043/58A Expired GB836546A (en) 1957-11-06 1958-10-31 Propellent powders

Country Status (1)

Country Link
GB (1) GB836546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3495338A1 (en) * 2017-12-08 2019-06-12 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Propellant charge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3495338A1 (en) * 2017-12-08 2019-06-12 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Propellant charge
WO2019112437A1 (en) 2017-12-08 2019-06-13 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Propellant charge

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